Brownstoner editor Cate Corcoran, 51, needed 26 stitches to close the gash on her face after she was slashed.

Doctors needed 26 stitches to close the gash on a woman’s face after a fellow straphanger slashed her during an iPhone robbery on a Brooklyn subway train, police sources said Thursday.

The victim, Brownstoner editor Cate Corcoran, 51, was attacked on a Queens-bound C train in Bedford-Stuyvesant about 5:45 p.m. Wednesday. The suspect, who’s still at large, was sitting a few feet away from her when he got up and grabbed her phone, sources said.

Speaking from behind the closed door of her home, Corcoran denied earlier reports that she refused to let go of her phone.

“He came up and hit me in the face and grabbed my cell phone and ran away,” she said. “I was sitting on the train reading my cell phone, facing into the center of the car. He came from the side.”